The best scenario, I believe, would be what Hissra had propositioned. As far as I can see, it would provide the most safety for all members of those who are engaged. If anything goes wrong, the four of you surely will be able to handle the situation.
I am hoping that no one will object and that everyone agrees, but if there is something you wish to say, please, I am not here to dictate anything and I am open to any suggestions that might result in better odds.